Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!ihlpf!straka
From: straka@ihlpf.ATT.COM (Straka)
Newsgroups: comp.sys.mac
Subject: Re: SCREENS HURT EYES (Mac SE, Plus)
Keywords: screens, screen, hurt, eyes, Clinton Taiwan Corp.
Message-ID: <3720@ihlpf.ATT.COM>
Date: 17 Feb 88 14:28:31 GMT
References: <1767@batcomputer.tn.cornell.edu> <993@ski.UUCP> <3645@batcomputer.tn.cornell.edu> <3402@sphinx.uchicago.edu> <699@pasteur.Berkeley.Edu>
Reply-To: straka@ihlpf.UUCP (55223-Straka,R.J.)
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 24

In article <699@pasteur.Berkeley.Edu> jkwan@cory.Berkeley.EDU.UUCP (Joe C. Kwan) writes:
>
>Does anyone know if the problem can be solved by getting a polarizing screen?

Yes, a polarizing screen helps a lot in high ambient light levels.  This is
primarily due to people's natural desire for high contrast on the display.
Under high ambient light, the display naturally get set up more brightly by
the user.  Higher brightness levels naturally increase the perceived flicker
on the display.

Putting on a true circular polarizing screen helps contrast dramatically.  I
kick my video way up for a pleasing brightness level (the filter attenuates
the light level substantially), and the ambient light problem goes away.

You don't need a polarizer if your ambient light levels are low, of course.

There is nothing special about a polarizing filter except that via physics it
does the best job of cutting down reflections without cutting down your image
nearly as much as a neutral density filter.  But don't touch them with greasy
fingers!
-- 
Rich Straka     ihnp4!ihlpf!straka

Advice for the day: "MSDOS - just say no."